如何在Android中制作倒数计时器? [英] How to make a countdown timer in Android?

问题描述

我有两个 XML 格式的 EditText.在一个 EditText 中，用户可以将一个数字作为分钟，而在另一个 EditText 中，一个数字作为秒.单击完成按钮后，秒 EditText 应该开始倒计时并每秒更新其文本.

I have two EditTexts in XML. In one EditText, the user can put a number as minutes and in another EditText, a number as seconds. After clicking the finish button, the seconds EditText should start to countdown and update its text every second.

另外，我怎样才能保持更新直到它达到零分零秒?

Additionally, how can I keep it updating until it gets to zero minutes and zero seconds?

推荐答案

new CountDownTimer(30000, 1000) {

    public void onTick(long millisUntilFinished) {
        mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
       //here you can have your logic to set text to edittext
    }

    public void onFinish() {
        mTextField.setText("done!");
    }

}.start();

请参阅此链接.

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